LU501307B1 - Unmanned aerial vehicle (uav) anti-oscillation liquid box based on bionic air bag - Google Patents
Unmanned aerial vehicle (uav) anti-oscillation liquid box based on bionic air bag Download PDFInfo
- Publication number
- LU501307B1 LU501307B1 LU501307A LU501307A LU501307B1 LU 501307 B1 LU501307 B1 LU 501307B1 LU 501307 A LU501307 A LU 501307A LU 501307 A LU501307 A LU 501307A LU 501307 B1 LU501307 B1 LU 501307B1
- Authority
- LU
- Luxembourg
- Prior art keywords
- liquid
- air bag
- box body
- uav
- bionic air
- Prior art date
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 115
- 239000011664 nicotinic acid Substances 0.000 title claims abstract description 67
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000575 pesticide Substances 0.000 abstract description 10
- 230000007423 decrease Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 10
- 230000008859 change Effects 0.000 description 7
- 230000003247 decreasing effect Effects 0.000 description 7
- 230000001133 acceleration Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- RZVHIXYEVGDQDX-UHFFFAOYSA-N 9,10-anthraquinone Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3C(=O)C2=C1 RZVHIXYEVGDQDX-UHFFFAOYSA-N 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
- B64D1/16—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting
- B64D1/18—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting by spraying, e.g. insecticides
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/0082—Undercarriages, frames, mountings, couplings, tanks
- A01M7/0085—Tanks
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/0089—Regulating or controlling systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- Insects & Arthropods (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Remote Sensing (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
Disclosed is a UAV anti-oscillation liquid box based on a bionic air bag, including a box body, wherein a bionic air bag is arranged in the box body, and an opening edge of the bionic air bag is attached to a bottom of the box body; a liquid inlet and a liquid level sensor are arranged at a top of the box body; and an inflation inlet and liquid outlets are formed in a bottom of the box body. When a U AV is functioning, pesticide solution is sprayed into fields, the liquid level declines, the liquid level sensor detects the decline, a controller controls the air pump to inflate the bionic air bag, so that the bionic air bag expands and occupies the reduced space, the liquid level sensor transmits a signal to the controller upon detection of the information, and the controller controls the air pump to stop.
Description
UNMANNED AERIAL VEHICLE (UAV) ANTI-OSCILLATION LIQUID BOX ~~ LU501307
[01] The present invention belongs to the technical field of agricultural aviation plant protection machinery and equipment, and particularly relates to a UAV anti-oscillation liquid box based on a bionic air bag.
[02] The agricultural plant protection UAV is equipped with a spraying device and controlled by a control system and a sensor to spray an accurate quantitative amount of pesticide solution to crops, thereby solving the problems of a low efficiency of manual operation and the necessity of ground sprayers to enter the fields for operation. Featuring satisfactory spraying effect, safety and efficiency, excellent environmental suitability, low cost and less pollution, the agricultural plant protection UAV has a broad application prospect in the field of crop pest control.
[03] However, agricultural plant protection UAV still faces multiple problems, such as high product cost, short endurance and immature flight control system. Inadequate flight stability is one of the key problems restricting the development of agricultural plant protection UAV. A liquid box is an important component of the UAV. A liquid level in the liquid box will slosh to a large extent at the start and stop, acceleration, deceleration, steering and other state generating acceleration of the UAV, resulting in the overall center of gravity shifting in the UAV system. Meanwhile, under the action of acceleration, the liquid in the liquid box presents an impact on the side wall. The above-mentioned two factors directly affect the overall safety and stability of the UAV.
[04] The present invention is intended to provide a UAV anti-oscillation liquid box based on a bionic air bag, which can be kept in a full state, so that the problems of liquid sloshing and change in the center of gravity caused by a decreasing amount of pesticide solution are effectively solved.
[05] To achieve the aforesaid purpose, the UAV anti-oscillation liquid box based on a bionic air bag of the present invention includes a box body, wherein a bionic air bag is arranged in the box body, and an opening edge of the bionic air bag is attached to a bottom of the box body; a liquid inlet is formed in a top of the box body, and a liquid level sensor for acquiring the liquid level information in the box body is installed on the top of the box body; an inflation inlet for communicating the bionic air bag with an air pump and liquid outlets for discharging liquid are set at a bottom of the box body, and the air pump inflates the bionic air bag based on the liquid level information from the liquid level sensor.
[06] In the above-mentioned technical solution, the bionic air bag is the smallest with the box body full of pesticide solution. When a plant protection UAV functions, the pesticide solution is sprayed into fields from the liquid outlets, the pesticide solution in the box body correspondingly reduces, and the liquid level declines; the liquid level 1 sensor detects the decline and transmits the information to a controller, and the LU501307 controller controls the air pump to inflate the bionic air bag, so that the bionic air bag expands and occupies the reduced space, and the box body recovers to a full state; the liquid level sensor transmits a signal to the controller after detecting the information, and the controller controls the air pump to stop. The process repeats until the bionic air bag expands to a maximum. In this process, the box body is always in a full state, and the problems of liquid sloshing and change in the center of gravity of the whole box body caused by a decreasing amount of pesticide solution will not occur. Moreover, the liquid box features a high strength, a large capacity, a simple structure, a small mass and a wide range of application. Therefore, a UAV equipped with this UAV anti-oscillation liquid box based on a bionic air bag has the advantages of stability and safety.
[07] According to a specific solution, a barometric sensor is arranged in the bionic air bag; a pressure release valve communicated to the bionic air bag is arranged at a bottom of the box body, and the pressure release valve releases pressure of the bionic air bag based on the pressure information from the barometric sensor. During inflation of the bionic air bag, when the barometric sensor detects a pressure in the bionic air bag higher than a certain threshold, the controller controls the pressure release valve to release pressure of the bionic air bag.
[08] According to another specific solution, a detachable top cap is arranged on the box body, and the liquid level sensor is installed on the top cap. The detachable top cap facilitates internal cleaning of the box body.
[09] According to another specific solution, the box body is cylindrical.
[10] According to a further specific solution, vertical guide grooves are arranged in a wall of the box body. The bionic air bag will be attached to an inner wall of the box body during the volume change, and the upper liquid cannot flow down. With guide grooves, the liquid isolated to an upper part of the box body by the bionic air bag can smoothly flow to a lower part, and flow out from the liquid outlets.
[11] According to one more specific solution, two liquid outlets are arranged at both sides of the opening edge of the bionic air bag respectively, and such two liquid outlets are converged by two conduits. The pesticide solution is more convenient to flow out.
[12] Compared with the prior art, the present invention features the following advantageous effects:
[13] An air bag similar to a swimming bladder is available in the liquid box of the present invention, and an air pump is provided. When a UAV functions, under the action of the air pump, the bionic air bag expands with the decreasing amount of pesticide solution, guaranteeing the liquid box is kept in a full state, so that the problems of liquid sloshing and change in the center of gravity caused by a decreasing amount of pesticide solution are effectively solved. Moreover, the liquid box features a high strength, a large capacity, a simple structure, a small mass and a wide range of application. Therefore, a UAV equipped with this UAV anti-oscillation liquid box based on a bionic air bag has the advantages of stability and safety.
[14] FIG. 1 is a stereogram of a UAV anti-oscillation liquid box based on a bionic air 2 bag in an embodiment of the present invention; LU501307
[15] FIG 2 is a schematic diagram of a liquid level of a traditional liquid box as tilted;
[16] FIG. 3 is a state diagram of a UAV anti-oscillation liquid box based on a bionic air bag full of liquid in an embodiment of the present invention;
[17] FIG. 4 is a state diagram of a UAV anti-oscillation liquid box based on a bionic air bag with part of the liquid consumed in an embodiment of the present invention;
[18] FIG 5 is a state diagram of a UAV anti-oscillation liquid box based on a bionic air bag with a plenty of liquid consumed in an embodiment of the present invention.
[19] In the figures: 1. box body; 2. bionic air bag; 3. barometric sensor; 4. pressure release valve; 5. liquid level sensor; 6. air pump; 7. guide groove; 8. liquid inlet; 9. liquid outlet.
[20] To make the purpose, technical solutions and advantages of the present invention clearer and more definite, the principle and features of the present invention will be described below in combination with the accompanying drawings. The embodiment given is intended to explain the present invention only, but not to limit the scope of the present invention.
[21] Embodiment
[22] As shown in FIG. 1, a UAV anti-oscillation liquid box based on a bionic air bag in the embodiment includes a cylindrical box body 1, wherein a bionic air bag 2 is arranged in the box body 1, and an opening edge of the bionic air bag 2 is attached to a bottom of the box body 1. A liquid inlet 8 is formed in a top of the box body 1, and a liquid level sensor 5 for acquiring the water level information in the box body 1 is installed on the top of the box body. An inflation inlet for communicating the bionic air bag 2 with an air pump 6 is formed in a bottom of the box body 1, and the air pump 6 inflates the bionic air bag 2 based on the liquid level information from the liquid level sensor 5. And, two liquid outlets 9 for discharging liquid are formed at both sides of the bionic air bag 2, on the bottom of the box body 1.
[23] The box body 1 is made of polyplastics featuring a high strength and a small mass. Two guide grooves 7 are distributed evenly in a side wall of the box body 1, thereby guaranteeing liquid in the box body 1 can flow freely when the bionic air bag 2 is relatively big. The opening connections of a lower surface of the liquid box 1 are sealed. Besides, the number of guide grooves in the side wall of the box body includes but is not limited to that shown in the accompanying drawings, and can be adjusted according to the actual situations.
[24] The bionic air bag 2 is made of polymer material with excellent ductility and tightness. Its size can vary over a wide range, and its opening is less than a lower surface of the box body 1. The air pump 6 is threaded to a lower surface (outside) of the box body, and the inflation inlet passes through the lower surface of the box body via a conduit to communicate to the bionic air bag 2.
[25] A barometric sensor 3 is arranged in the bionic air bag 2, a pressure release valve 4 communicated to the bionic air bag 2 is arranged at a bottom of the box body 1, 3 and the pressure release valve 4 releases pressure of the bionic air bag 2 based on the LUS01307 pressure information from the barometric sensor 3.
[26] The liquid level sensor 5 can monitor a liquid level in the liquid box in real time, and transmit a signal to a box body controller. The barometric sensor 3, installed on a lower surface (inside) of the box body, can monitor a pressure in the bionic air bag 2 in real time, and transmit a signal to the box body controller.
[27] Detachable filter screens are installed at the liquid outlets 9 at both sides of the lower surface of the box body 1, and the liquid outlets 9 are converged by two conduits.
[28] When a UAV functions, the liquid in the box body 1 keeps consuming, and the liquid level tends to decline. The liquid level sensor 5 monitors the liquid level in real time, and the box body controller controls the air pump 6 to inflate the bionic air bag 2 through analysis and processing of liquid level information, to keep the liquid box in a full state most of the time, and keep the center of gravity of the liquid box stable in a certain height range, thereby solving the problems of liquid sloshing and change in the center of gravity caused by a decreasing liquid amount. An upper limit is set for the pressure release valve 4, which will release pressure of the bionic air bag 2 when a pressure in the bionic air bag 2 is too high.
[29] The working mode of the UAV anti-oscillation liquid box based on a bionic air bag will be further described below in combination with FIG. 2, FIG. 3, FIG. 4 and FIG. 5:
[30] When the UAV is under start and stop, acceleration, deceleration, steering and other states generating acceleration, the whole liquid box will tilt, and a traditional liquid box will be subject to heavy liquid sloshing and oscillation, resulting in the overall center of gravity shifting in the UAV system, as shown in FIG. 2. The present invention keeps the liquid box in a full state most of the time, and keeps the center of gravity of the liquid box stable in a certain height range by means of the bionic air bag 2, solving the problems of liquid sloshing and change in the center of gravity caused by a decreasing liquid amount. The implementation steps are as follows:
[31] 1. When the UAV liquid box is full, the air pump 6 does not function, and the bionic air bag 2 is the smallest, as shown in FIG. 3.
[32] 2. When the UAV functions, the liquid in the liquid box keeps decreasing. The liquid level sensor 5 detects a liquid level change. [331 3. The air pump 6 starts to work, and the bionic air bag 2 expands until the liquid box is full again, and the air pump 6 stops, as shown in FIG. 4.
[34] 4. Whether the pressure reaches a set maximum threshold is determined; if yes, the pressure release valve 4 functions.
[35] 5. The above steps are repeated until the bionic air bag 2 expands to a maximum, and the barometric sensor 3 detects that the pressure in the bionic air bag 2 reaches a maximum Pmax, the air pump 6 stops. Go to Step 6.
[36] 6. Spraying continues, and the liquid level keeps declining, until the liquid in the liquid box is used up, as shown in FIG. 5.
[37] At the above-mentioned stage, the upper liquid of the liquid box can flow down freely under the action of the guide grooves 7. Because of the bionic air bag 2, the surface area of the liquid level is greatly reduced, its degree of sloshing is also 4 correspondingly reduced, and the influence on the center of gravity of the UAV is also LU501307 greatly lowered.
[38] Meanwhile, the liquid box structure in the present invention can also be used in automobiles, ships and other kinematic machines, with a function of improving the stability of such machines during motion.
Claims (6)
1. A UAV anti-oscillation liquid box based on a bionic air bag, comprising a box body, wherein: a bionic air bag is arranged in the box body, and an opening edge of the bionic air bag is attached to a bottom of the box body; a liquid inlet is formed in a top of the box body, and a liquid level sensor for acquiring the liquid level information in the box body is installed on the top of the box body; and an inflation inlet for communicating the bionic air bag with an air pump and liquid outlets for discharging liquid are formed in a bottom of the box body, and the air pump inflates the bionic air bag based on the liquid level information from the liquid level Sensor.
2. The UAV anti-oscillation liquid box of claim 1, wherein: a barometric sensor is arranged in the bionic air bag; a pressure release valve communicated to the bionic air bag is arranged at a bottom of the box body, and the pressure release valve releases pressure of the bionic air bag based on the pressure information from the barometric sensor.
3. The UAV anti-oscillation liquid box of claim 1, wherein: a detachable top cap is arranged on the box body, and the liquid level sensor is installed on the top cap.
4. The UAV anti-oscillation liquid box of claim 1, wherein: the box body is cylindrical.
5. The UAV anti-oscillation liquid box of claim 4, wherein: vertical guide grooves are arranged in a wall of the box body.
6. The UAV anti-oscillation liquid box of claim 1, wherein: two liquid outlets are arranged at both sides of the opening edge of the bionic air bag respectively, and such two liquid outlets are converged by two conduits.
1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU501307A LU501307B1 (en) | 2022-01-24 | 2022-01-24 | Unmanned aerial vehicle (uav) anti-oscillation liquid box based on bionic air bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU501307A LU501307B1 (en) | 2022-01-24 | 2022-01-24 | Unmanned aerial vehicle (uav) anti-oscillation liquid box based on bionic air bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU501307B1 true LU501307B1 (en) | 2022-08-09 |
Family
ID=82848738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU501307A LU501307B1 (en) | 2022-01-24 | 2022-01-24 | Unmanned aerial vehicle (uav) anti-oscillation liquid box based on bionic air bag |
Country Status (1)
| Country | Link |
|---|---|
| LU (1) | LU501307B1 (en) |
-
2022
- 2022-01-24 LU LU501307A patent/LU501307B1/en active IP Right Grant
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Patent granted |
Effective date: 20220809 |